High-light-transmittance weather-proof impact-resistant striped sound insulation board

By using recycled material reactive extrusion and multi-stage purification technology, combined with transparent dispersion diffusion masterbatch and core-shell weather-resistant masterbatch, a high-transmittance, weather-resistant, and impact-resistant striped sound insulation board is formed. This solves the problem of balancing weather resistance, impact resistance, and sound insulation in existing transparent multilayer barrier materials, achieving high transparency, low haze, good weather resistance, strong impact resistance, and easy cleaning, thus meeting the design life requirements of sound barriers for highways and rail transit.

CN121552772APending Publication Date: 2026-02-24JASLON NEW MATERIALS TECH (JIANSU) CO LTD
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Patent Information

Application Number
CN202511727947.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-24
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing transparent multilayer barrier materials suffer from insufficient weather resistance, poor impact resistance, difficulty in achieving both sound insulation and light transmission, cleaning difficulties, and high raw material costs during outdoor service. As a result, their actual service life is far shorter than the design life and they do not meet environmental protection requirements.

Method used

The striped sound insulation board is made by using recycled material reactive extrusion technology combined with high-temperature adsorption activated carbon and multi-stage high vacuum purification, along with transparent dispersion diffusion masterbatch and core-shell weather-resistant masterbatch. The middle layer introduces styrene-maleic anhydride damping resin and supercritical CO2 to form a microporous structure, and the bottom layer enhances impact resistance. Through three-layer co-extrusion and secondary UV fluorosilicone curing treatment, a striped sound insulation board with high light transmittance, weather resistance, impact resistance and easy cleaning is formed.

Benefits of technology

A striped sound insulation board with high transparency, low fog, good weather resistance, strong impact resistance, easy cleaning and excellent sound insulation effect has been achieved, which meets the design life requirements of sound barriers for highways and rail transit, extends the service life and reduces the cost of raw materials.

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Abstract

The invention relates to the technical field of multi-layer material preparation, in particular to a high-light-transmittance weather-proof impact-resistant striped sound insulation board. The problem that transparency, weather resistance and sound insulation effect of a traditional stripe material are difficult to consider at the same time is solved. The light scattering and absorption center is reduced and high transparency and low haze are realized through reactive extrusion of the recycled material, combination of high-temperature adsorption activated carbon, multi-stage high vacuum and deep purification of a reactive decolorizing agent, and matching of transparent dispersion diffusion master batch and a compatilizer. The surface layer adopts the core-shell weather-resistant master batch and the secondary high-energy UV fluorosilicone curing coating for double shielding of ultraviolet and inhibition of photodegradation and yellowing; styrene-maleic anhydride damping resin is introduced into the middle layer, and uniform inclined micropores and asymmetric stripes formed by supercritical CO2 are combined, so that the medium and low frequency sound insulation index is improved; the bottom layer is repaired and guaranteed to be durable in impact resistance by virtue of a core-shell toughening agent and molecular chain extension; the defects of traditional products are overcome, and the service life requirement of sound barriers for expressways and rail transit is met.
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